Gas Gas

seen on www.mototrial.it trick gasser

Hi Guys, Just a quick question, does the 2002 txt pro 280 rear shock look like this? looks to me like the bottom part is bent or is this curved for a reason? I tryed to check with the 2004 and 2007 gassers that are hee but they look different. Cheers all!

The exhaust system seems like it's not liked by many.. Tire rubbing, very difficult to service the middle box. I've been studying a bit in preparation to service mine. It occurs to me that the system is quite a bit different than other two stroke systems I've seen. The middle box is full of packing with just a perf tube running thru so it doesn't really seem to be much of an expansion chamber. It's almost like there is a middle silencer and an end silencer and no spans ion chamber. Can anyone shed some light on this? Has anyone tried gutting the middle box so it would have an expansion chamber. It seems like if a guy did that and then put a light weight aftermarket silenc…

Hi chaps,i need to sort this dragging clutch out on my sons bike.its not a major problem but i just want it right for him. I`ve been advised to buy a new clutch pack,but before i do,has anyone had the same problem??,i know about measuring the plates etc,but i`ve been told that it could be the `o`ring behind the top hat thingy behind the casing thats worn. The lever is nice and light,clutch operation is smooth,and yes i have back bled the clutch from the casing. Another thing is that although its dragging when lever is pulled back to the bars,the biting point is in what i would say is a normal position. Got any tips??? Thanks in advance

As above. Been ripped off on a private sale and bike gave up on my first trial. Great introduction to my new hobby. The questions are, how difficult a job is it to swap crank cases. I am a semi skilled engineer by trade but know little of engine internals. I realise I will need pullers but have also heard something about having to freeze and heat casings? Any links or help mucbh appreciated. Thanks

I was showing off my new bike to a friend and he commented that he never heard of a Cas Cas. After that, whenever I look at the logo it seems to need some improving upon so I created this:

Anyone know where I can get one of these from... the bleed nipple has seized inside and won't come out. drilled it and tried to extract it.. no luck.... caliper bolts corroded in so suspect this is the same... Haven't found a replacement online so far, anybody know where to get one from please? Cheers

where can i get a front and rear mud guards,with graphics ,disc guard and seat, plus tank graphics for my gas gas 280 2001 txt thanks

Hi Guys, n Girls, I have just bought myself a 2002 250 TXT Pro Did my first trial last Saturday fantastic! Clutch was dragging badly so today I drained it and replenished with 5 - 30 symbiotic Castrol to 3/4 way up eye glass about 400 ml I've see 350 and 550 mentioned as capacity for gear oil Hope this is right the previous owner said that the bike has 2003 clutch and gear box is this a common mod? Second Observation the rear brake is very sharp resting foot on it lock rear wheel, is this normal pads look good, should I get used to it or investigate? Any advise gratefully received, could some one give me a run down on differences between pro and non pro version Gr…

The previous owner has already started modernising my '04 TXT 280 with Renthal Fat Clamps, Jitsie Bars, wheel rim decals and either newer white legged Marzocchi forks or had the old ones powder coated (yet to be discovered so any info oh how I can tell would be handy). So to finish it off i'll probably do the wheels black and add new plastics and/or decals, so my questions are: Will any of the newer graphics fit the older plastics, if so which ones? Will any of the newer plastics fit the older bike, if so which ones? Thanks in advance :-) The bike, for reference:

Can anyone point me in the right direction for a owners manual / workshop manual. Hard copy or pdf. Looked on flea bay but no luck. Gas Gas txt pro 280 (2002) Cheers Andy

Many GasGas Pro owners experience clutch drag. The GasGas Pro clutch is very sensitive to the 'finger height' and the currently available complete clutch pack is too thick resulting in noticeable drag - the slave cylinder 'top hat' can't engage the 'shallower' finger height to hold tension or complete disengage. If a 2.00mm steel plate is replaced with a 1.30mm-1.50mm steel plate, the finger height will be too high resulting in slip - top hat stays engaged. I recently replaced my Pro clutch pack and discovered the following: GasGas only sells the complete clutch pack MT280232055 : 3 Friction plates MT280232051 and 2 steel plates.MT280232050 . See note below.. Each stee…

Hi all Had my 17 for a few months really love the bike, just wondering if anyone has had any experience keeping the airbox clean. I don't ride in particularly rough or wet conditions.but every time I change the filter I have to take the airbox off and clean out all the mud / water it's a pain in the a*** ! Thanks.

Hi guys and girls I had a ride on my Gas Gas txt 300 2005 yesterday went this morning and on the stand was a milky colour oil witch looks like it is leaking from the gear box (kick start side) do you think I need to replace the seal? Flush it out? or is it more serious? What's the best gear box oil to use? Any help would b great thanks

Now this is a curly one, after issues with faulty bottom end bearings, for some reason my the brass pressure relief valve beside the screw in radiator filler has started weeping, stops when fan comes on, i took cap off and it had like a carbon build up on the base and a bit of the thread of the main cap, also the relief valve was covered with gunk, not bad but a bit. I know its two stroke, BUT could the o'ring on the head be allowing pressure into the cooling system ?This is only recently happened, and it seems to coincide with a bit of detonation under throttle. I have dropped the needle 1 to lean it a bit, and will run in comp tomorrow. I did not when idling bike there…

Hello again all. Sorry if this a stupid question but what's the correct gap for a 2006 txt pro 280? And do all trials bikes run the same gap? Thanks bounce.

Some people say after 3/4 trials, some people say 4 times a year...what do you think?

Hi, I'm sure this question has been asked a million times but here it is again. Bike running perfectly and decided to fit a new magnetic kill switch. Easy peasy, unplug the old one from the CDi side and then swap the earth/ground over from old to new. It was pre wired for terminals. Now no spark and I have checked every wire under the tank for breaks, not being connected, etc. NOTHING I have a multi meter but not the small probes to check resistance in the CDi multi plug Can anyone help please?

this might be of interest to you, there's alot of us wondering so i got my mate who is the motul dealer here to email motul directly. his reply: Ref. the Gas Gas 280 TXT 2011 gearbox oil, you can use with confidence our Transoil Expert 10W40. NB: when it states 1999- on our online tool, it means the recommendation has changed since.

Hi I am about to buy myself a 2012 Raga. Something to be aware of? What attracts me - besides that it looks da*** well - is Tech forks, AJP clutch and brakes, Reiger shock and.. well thats it I think.. A little surprised that it has a DelOrto not Kehin? -Jan